| NSF Org: |
OPP Office of Polar Programs (OPP) |
| Recipient: |
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| Initial Amendment Date: | August 19, 2009 |
| Latest Amendment Date: | February 3, 2012 |
| Award Number: | 0909507 |
| Award Instrument: | Standard Grant |
| Program Manager: |
Henrietta Edmonds
hedmonds@nsf.gov (703)292-7427 OPP Office of Polar Programs (OPP) GEO Directorate for Geosciences |
| Start Date: | September 1, 2009 |
| End Date: | September 30, 2013 (Estimated) |
| Total Intended Award Amount: | $225,550.00 |
| Total Awarded Amount to Date: | $225,550.00 |
| Funds Obligated to Date: |
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| ARRA Amount: | $225,550.00 |
| History of Investigator: |
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| Recipient Sponsored Research Office: |
701 S NEDDERMAN DR ARLINGTON TX US 76019-9800 (817)272-2105 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
701 S NEDDERMAN DR ARLINGTON TX US 76019-9800 |
| Primary Place of
Performance Congressional District: |
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| Unique Entity Identifier (UEI): |
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| Parent UEI: |
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| NSF Program(s): | ANS-Arctic Natural Sciences |
| Primary Program Source: |
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| Program Reference Code(s): |
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| Program Element Code(s): |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.078 |
ABSTRACT
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).
The goal of this project is to determine how plants, microbes and soil invertebrates interact to drive changes in soil organic matter and carbon sequestration with ambient and increased soil nutrient availability in the dominant upland arctic tundra ecosystem in northern Alaska. The proponents will use a combination of field observation, experimental, laboratory, and modeling approaches to address four research objectives that include:
1. Understanding how well-documented changes in the plant community alter plant inputs to soils (roots and litter)
2. Determining how soil microbial and invertebrate communities respond to these inputs
3. Investigating if the loss of SOM occurs in response to an increase in soil activities and/or a change in community structure, and
4. Developing a model of soil pedogenesis based on the DAYCENT model (Parton et al. 2001) that incorporates the roles of plants, microbes, and invertebrates.
This work will be conducted at the Toolik Lake Long-Term Ecological Research site and will utilize a suite of long-term nutrient-addition plots (some extending back over 30 years) as well as more recently manipulated sites. A postdoctoral researcher, at least two graduate students, and several undergraduates will be trained as part of this project. The PIs will also conduct teacher development workshops and other K-12 outreach programs.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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